Thomas s



T. S. SPEAKMAN Chimney Cowl. No. 90,600. Patented May 25,1869.

N. PETERS. Photo-Lithographer Walhinglan. n. a

that saw THOMAS S. S'PEAKMAN, OF CAMDEN, NEW JERSEY.

Letters Patent No. 90,600, dated May 25, 1869.

CHIMNEY-COWL.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, THOMAS S. SPEAKMAN, of the city and county of Camden, in the State of New J erseg, have invented a new and useful Improvement in G imney-Gowls; and I do hereby declare the following to be a full, clear, and con-cot description of the same, suificient to enable others skilled in the art to which my invention appertains, to fully understand and construct the same, reference being bad to the accompanying drawings, which make part of this specification, and in which- Figure 1 is a vertical central section of my improved chimney-cowl, and

Figure 2 is an end view of the same.

Like letters of reference indicate like parts in both figures. 1

The nature of my invention consists in producing a chimney-cowl, which, without rotating, will be effective,

from whatever direction the wind may blow.

A A are two hollow cones, placed with their bases toward and near each other, leaving a clear space, a, between them.

These cones rest on and form part of the pipe B, which may pass a short distance into these cones, as shown in fig. 1, and are held at a proper distance from each other by strips, b, or any other suitable means.

A ring, 0, passes around these cones, in a line at right angles to the circumference of their bases, being suitably secured on pipe B.

In red lines, fig. 1, I have shown the ring 0 made with inwardly-bent edges, which give a downward direction to the wind, and in case I construct the ring in this manner, its width must be determined by the length of the cones, as the wind would not be able to operate under the ring, were the same to decline too near to the cones, but when the ring is made straight it may be of any suitable width, for the greater the space 0 between the ring and the cones,-the greater will be the vacuum produced.

Bolts d 11, passing through cones A A and ring 0, steady the ring'and hold it firmly in position.

A great objection to rotating chimney-cowls is their wearing out so quick.

My improved cowl is stationary, but just as effective as the rotating ones, for it will be easily understood that the wind, coming from any direction whatever, will always create a vacuum in spaces 0, between the cones and the ring, and force the smoke to follow.

I do not confine myself to any special material for the construction of my improved cowl, nor to any size of the same.

Having thus described my invention,

What I claim as new,and desire to secure by Letters Patent, is-

A chimney-cowl, consisting of two hollow cones A A, incombin'ation with a ring, 0, arranged to operate substantially as herein described.

In testimony whereof, I have hereunto set my hand and seal, this 15th day of April, A. D, 1869.

THOMAS S. SPEAKMAN; [L. s.]

Witnesses:

WM. 0. MCINTIRE, Annxn. A. O. KLAuoKE. 

